Kautilya's Arthashastra 2.19.45

2.19.45

kuḍubārdhacaturaṣṭabhāgāni mānāni kārayet //

Half, one-fourth, and one-eighth parts of the measure, kumbha, shall also be manufactured. 84 kudumbas of clarified butter are held to be equal to a wáraka of the same; 64 kudumbas of clarified butter are held to be equal to make one wáraka of oil (taila);and¼ of a wáraka is called ghatika, either of ghi or of oil.